Break enemies apart. Steal their parts. Build your ultimate frame.
A mobile mech-building action RPG inspired by the discontinued Gundam Breaker Mobile (2019–2023). FrameBreaker captures everything fans loved — cross-series Franken-building, part-break loot, EX skill combos — without the predatory gacha that killed the original.
You are a pilot competing in sanctioned Frame Battle circuits. Each match is a real-time arena fight against enemy AI frames. Destroy an enemy's arm? That arm flies off and drops to the ground. Pick it up. Install it mid-match. Use their own weapon against them.
Between matches you return to your workshop: upgrade parts, swap loadouts, paint your frame, and theorize the next build. Then queue up and do it again.
Core pillars:
- Break → Collect → Build — the core loop never changes
- Cross-series Franken-building — heads, torsos, arms, legs, weapons from hundreds of frame archetypes that can be mixed freely
- Aesthetic ≠ Stats — any part can be made viable through the Synthesis system; you never have to choose between looking cool and being effective
- Skill expression, not wallet expression — no gacha; progression is earned through play
Enemy frames have 8 breakable zones: head, torso, L/R arms, L/R legs, backpack, and shield. Targeting specific zones breaks off those parts and spawns them as loot. Break a leg → enemy slows. Break the backpack → they lose their ranged artillery. Break the head → they lose target-lock. Strategic destruction matters.
| Slot | Notes |
|---|---|
| Head | Affects sensor range, lock-on speed |
| Torso | Core HP + passive trait pool |
| Left Arm | Independent melee weapon slot |
| Right Arm | Independent melee weapon slot |
| Left Shoulder | Ranged weapon or builder attachment |
| Right Shoulder | Ranged weapon or builder attachment |
| Legs | Movement speed, dodge stats |
| Backpack | Thruster, wing, or utility unit |
Both arms have independent loadouts — run dual blades, dual cannons, or mix. Two-handed weapons occupy both arm slots for maximum single-weapon power.
Every part carries an EX Skill — a powerful active ability (beam burst, blade rush, shield slam, AoE mine, etc.). You equip up to 4 EX Skills simultaneously drawn from any of your equipped parts. The EX gauge fills through combat. Chain skills for combos.
Burst Mode: Fill the burst bar fully → activate → temporary supercharge with enhanced stats and a frame-specific Burst EX. Visually transforms your frame's appearance during the burst window.
Up to 8 passive OP Skills (cooldown-driven utility abilities) run in the background: auto-heal on break, counter-dodge, chain boost, combo extender, etc.
Every part carries two Word Tags (e.g., High Mobility, Coordinator, Newtype, Long Range, Mobile Fighter). Stack matching tags across your 8 slots to trigger Synergy Bonuses — the deeper the match, the stronger the bonus. Thematic mono-builds get rewarded. Mixed-archetype builds require smarter tag choices.
Six attributes: Fire, Ice, Wind, Thunder, Light, Dark. Each part has an attribute. Stack same-attribute parts for Attribute Link bonuses at 8 / 10 / 12 link points. Attribute type-matchups add a soft strategic layer to matchmaking.
A composite stat across all 8 slots — quick read on overall build strength.
- Level Up: Feed duplicate parts or materials to increase a part's level cap
- Rarity Upgrade: Use Synthesis materials to raise a part from 1★ → 5★
- Skill Transfer (5★ Mastered): At max rarity, a part's EX Skill becomes Mastered — permanently portable to any future build regardless of which part is equipped. Build what looks good; your best skills travel with you.
- Cannibalize: Absorb a part's abilities into another part. Keep your favorite aesthetic piece; transplant the stats from something uglier but powerful.
Separate character roster: licensed frame pilots with passive squad bonuses and unique support triggers. Pilots are earned through gameplay and events — not gacha. Assign pilots to frames for their passive stacks.
| Mode | Description |
|---|---|
| Campaign | Story-driven missions, three difficulty tiers. Harder = better loot. |
| Circuit | Rotating weekly mission sets with special ruleset modifiers. |
| Raids | 3-player co-op boss battles against giant enemy frames. |
| Bounty Hunt | Async PvP: every player has a bounty; defeating others increases yours. No ranked ladder. |
| Workshop | Build, paint, pose, and photograph your frames. Share to the community gallery. |
Buy-to-play with cosmetic DLC only. No gacha. No energy timers. No PvP powercreep.
- One-time purchase (mobile premium or free with ad-removal IAP)
- Season Passes: New frame packs (parts, story missions, cosmetics) — never stats
- Cosmetic bundles: Decal sets, paint shaders, builder ornament packs
- Breaker Boosters: Consumable loot multipliers earnable through S-rank clears; also purchasable for convenience — never mandatory
The lesson from GBM's shutdown: whale PvP killed the community. FrameBreaker has no ranked PvP that can be pay-to-win by design.
Engine: Godot 4 (open source, mobile-friendly, strong 3D performance on mid-range Android/iOS)
Architecture:
- Client: GDScript / C# hybrid (performance-critical systems in C#)
- Server: Elixir/Phoenix (real-time multiplayer, co-op raids, leaderboards)
- Database: PostgreSQL + Redis
- Asset pipeline: Blender → GLTF → Godot
Target platforms: Android (primary), iOS, PC (via Godot export)
framebreaker/
├── docs/
│ ├── DESIGN.md # Full game design document
│ ├── SYSTEMS.md # Individual system specs
│ ├── ART_DIRECTION.md # Visual style guide
│ └── ROADMAP.md # Milestone plan
├── client/ # Godot 4 project
├── server/ # Elixir/Phoenix backend
├── assets/ # Source art, models, audio
└── tools/ # Build scripts, asset pipeline
Pre-production. Design documentation phase. No playable build yet.
Contributions welcome — especially:
- Game designers with mobile action RPG experience
- Godot 4 generalists
- 3D artists familiar with mech/robot aesthetics
- Backend engineers (Elixir/Phoenix preferred)
Built on the shoulders of Gundam Breaker Mobile (2019–2023, Bandai Namco), Gundam Breaker 3, and Gundam Breaker 4. FrameBreaker is an original IP — no Gundam licensing, no IP encumbrance. The mechanic DNA is the inspiration; the world is entirely new.
"The best Gunpla is the one you built yourself."
MIT — build it, fork it, make it yours.